Iframe escape by plugins in Logseq_CVE-2026-47901

4.6 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Description

Logseq is vulnerable to a sandbox escape flaw where plugins running in sandboxed iframes can inject arbitrary HTML attributes, such as event handlers, into their container element in the host DOM. Due to a disabled Content Security Policy (CSP), this allows a malicious plugin to execute arbitrary JavaScript in the privileged host context, potentially gaining unauthorized access to filesystem APIs.
While only version v0.10.15 was tested and confirmed as vulnerable, status of other versions is unknown since this issue was not addressed by a patch.

Basic Information

ID CVE-2026-47901

Source CERT-PL

Published Jun 9, 2026 at 13:23

Affected Product

Vendor logseq

Product logseq

Affected Versions logseq logseq 0

CWE Classification

CWE-79

References

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    "lastseen": "",
    "description": "Logseq is vulnerable to a sandbox escape flaw where plugins running in sandboxed iframes can inject arbitrary HTML attributes, such as event handlers, into their container element in the host DOM. Due to a disabled Content Security Policy (CSP), this allows a malicious plugin to execute arbitrary JavaScript in the privileged host context, potentially gaining unauthorized access to filesystem APIs.\nWhile only version v0.10.15 was tested and confirmed as vulnerable, status of other versions is unknown since this issue was not addressed by a patch.",
    "published": "2026-06-09T13:23:46.678Z",
    "modified": "2026-06-09T13:23:46.678Z",
    "type": "cve",
    "title": "Iframe escape by plugins in Logseq",
    "source": "CERT-PL",
    "references": "https://cert.pl/en/posts/2026/06/CVE-2026-9279/\nhttps://logseq.com/",
    "id": "CVE-2026-47901",
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    "sourceData": "logseq logseq 0",
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    "cvss": {
        "score": 4.6,
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        "version": "4.0"
    },
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
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        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "logseq",
    "version": "0",
    "vendor": "logseq",
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